In alphabetical order.

cat (catenate: show a file on screen)
cd (change directory)
grep (search)
ifconfig (interface configuration)
ls (list)
mkdir (make directory)
more
ping (network test)
pwd (print working directory)
rm (remove a file)
rmdir (remove directory)
touch (create an empty file)
wget (network downloader)

Return to the section introduction, GNU and UNIX Commands.